Hardware Questions

LIFO (Last In First Out) stack is used in 8085. in this type of Stack the last stored information can be retrieved first.

Program counter holds the address of either the first byte of the next instruction to be fetched for execution of the address of the next byte of a multi byte instruction, which has not been completely fetched. In both the cases it gets incremented automatically one by one as the instruction bytes get fetched. Also Program register keeps the address of the next instruction.

In 8086 Carry flag, Parity flag, Ausiliary caarry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sign flag.

Yes, single thread module

Main Boot Record is located is sector 0, track 0, head 0, cylinder 0 of the primary active partition.

* - any characters, aribitary among

? - single character

A bus is a group of conducting lines that carriers data, address, & control signals.

A bus is two or many wire communication method. A bus which communicate between two active devices, it may transfer address, data etc..

Sign flag, Zero flag, Auxillary flag, Parity flag, Carry flag.